From: John Darrington <john@darrington.wattle.id.au>
Date: Thu, 28 Jul 2011 10:16:14 +0000 (+0200)
Subject: Fix crash in Correlations
X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fbuilds%2F20110730030502%2Fpspp;p=pspp

Fix crash in Correlations
---

diff --git a/src/math/categoricals.c b/src/math/categoricals.c
index f1bd090237..d3aa372867 100644
--- a/src/math/categoricals.c
+++ b/src/math/categoricals.c
@@ -245,6 +245,8 @@ categoricals_destroy (struct categoricals *cat)
 {
   struct variable_node *vn = NULL;
   int i;
+  if (NULL == cat)
+    return;
   for (i = 0; i < cat->n_iap; ++i)
     {
       struct interaction_value *iv = NULL;